Which statement best describes the core idea of inventory pooling?

Which statement best describes the core idea of inventory pooling?

• A. Holding inventory at multiple locations to hedge risk.
• B. Decentralizing inventory to each location leads to higher carrying costs.
• C. Centralizing inventory to serve multiple locations increases safety stock.
• D. Centralizing inventory to serve multiple locations reduces safety stock and can improve service levels.

Answer: (D)

Inventory pooling relies on centralizing stock to serve multiple locations, so demand variability can be shared rather than duplicated. When you pool inventory, you hold stock in one place to cover several sites, and the aggregate variability of demand across all locations is typically less than the sum of variability at each site. This means you can maintain the same level of service with a smaller overall safety stock, freeing up capacity and reducing carrying costs. As a result, service levels can improve because stock is readily available from the central pool where needed. Holding inventory at multiple locations to hedge risk describes decentralization, which usually increases total safety stock and carrying costs because each site keeps its own buffers. Centralizing to serve multiple locations and increasing safety stock runs counter to pooling benefits. So centralizing to serve multiple locations reduces safety stock and can improve service levels is the best description.

Inventory pooling relies on centralizing stock to serve multiple locations, so demand variability can be shared rather than duplicated. When you pool inventory, you hold stock in one place to cover several sites, and the aggregate variability of demand across all locations is typically less than the sum of variability at each site. This means you can maintain the same level of service with a smaller overall safety stock, freeing up capacity and reducing carrying costs. As a result, service levels can improve because stock is readily available from the central pool where needed.

Holding inventory at multiple locations to hedge risk describes decentralization, which usually increases total safety stock and carrying costs because each site keeps its own buffers. Centralizing to serve multiple locations and increasing safety stock runs counter to pooling benefits. So centralizing to serve multiple locations reduces safety stock and can improve service levels is the best description.